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authorJunio C Hamano <gitster@pobox.com>2016-02-26 13:37:16 -0800
committerJunio C Hamano <gitster@pobox.com>2016-02-26 13:37:16 -0800
commit11529ecec914d2f0d7575e6d443c2d5a6ff75424 (patch)
treef91bf9915ab0499913b8ee0e941a642183b7da67 /refs
parent3ed26a44b3415f5761bdab21f823d964c20a2824 (diff)
parent08c95df8faa25ab4c9ad3da45bc12abb9274d343 (diff)
downloadgit-11529ecec914d2f0d7575e6d443c2d5a6ff75424.tar.gz
git-11529ecec914d2f0d7575e6d443c2d5a6ff75424.tar.xz
Merge branch 'jk/tighten-alloc'
Update various codepaths to avoid manually-counted malloc(). * jk/tighten-alloc: (22 commits) ewah: convert to REALLOC_ARRAY, etc convert ewah/bitmap code to use xmalloc diff_populate_gitlink: use a strbuf transport_anonymize_url: use xstrfmt git-compat-util: drop mempcpy compat code sequencer: simplify memory allocation of get_message test-path-utils: fix normalize_path_copy output buffer size fetch-pack: simplify add_sought_entry fast-import: simplify allocation in start_packfile write_untracked_extension: use FLEX_ALLOC helper prepare_{git,shell}_cmd: use argv_array use st_add and st_mult for allocation size computation convert trivial cases to FLEX_ARRAY macros use xmallocz to avoid size arithmetic convert trivial cases to ALLOC_ARRAY convert manual allocations to argv_array argv-array: add detach function add helpers for allocating flex-array structs harden REALLOC_ARRAY and xcalloc against size_t overflow tree-diff: catch integer overflow in combine_diff_path allocation ...
Diffstat (limited to 'refs')
-rw-r--r--refs/files-backend.c19
1 files changed, 5 insertions, 14 deletions
diff --git a/refs/files-backend.c b/refs/files-backend.c
index b56976288..81f68f846 100644
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -199,17 +199,14 @@ static struct ref_entry *create_ref_entry(const char *refname,
const unsigned char *sha1, int flag,
int check_name)
{
- int len;
struct ref_entry *ref;
if (check_name &&
check_refname_format(refname, REFNAME_ALLOW_ONELEVEL))
die("Reference has invalid format: '%s'", refname);
- len = strlen(refname) + 1;
- ref = xmalloc(sizeof(struct ref_entry) + len);
+ FLEX_ALLOC_STR(ref, name, refname);
hashcpy(ref->u.value.oid.hash, sha1);
oidclr(&ref->u.value.peeled);
- memcpy(ref->name, refname, len);
ref->flag = flag;
return ref;
}
@@ -268,9 +265,7 @@ static struct ref_entry *create_dir_entry(struct ref_cache *ref_cache,
int incomplete)
{
struct ref_entry *direntry;
- direntry = xcalloc(1, sizeof(struct ref_entry) + len + 1);
- memcpy(direntry->name, dirname, len);
- direntry->name[len] = '\0';
+ FLEX_ALLOC_MEM(direntry, name, dirname, len);
direntry->u.subdir.ref_cache = ref_cache;
direntry->flag = REF_DIR | (incomplete ? REF_INCOMPLETE : 0);
return direntry;
@@ -939,13 +934,10 @@ static void clear_loose_ref_cache(struct ref_cache *refs)
*/
static struct ref_cache *create_ref_cache(const char *submodule)
{
- int len;
struct ref_cache *refs;
if (!submodule)
submodule = "";
- len = strlen(submodule) + 1;
- refs = xcalloc(1, sizeof(struct ref_cache) + len);
- memcpy(refs->name, submodule, len);
+ FLEX_ALLOC_STR(refs, name, submodule);
refs->next = submodule_ref_caches;
submodule_ref_caches = refs;
return refs;
@@ -2197,10 +2189,9 @@ static int pack_if_possible_fn(struct ref_entry *entry, void *cb_data)
/* Schedule the loose reference for pruning if requested. */
if ((cb->flags & PACK_REFS_PRUNE)) {
- int namelen = strlen(entry->name) + 1;
- struct ref_to_prune *n = xcalloc(1, sizeof(*n) + namelen);
+ struct ref_to_prune *n;
+ FLEX_ALLOC_STR(n, name, entry->name);
hashcpy(n->sha1, entry->u.value.oid.hash);
- memcpy(n->name, entry->name, namelen); /* includes NUL */
n->next = cb->ref_to_prune;
cb->ref_to_prune = n;
}